atmosphere and ozone layer and discuss how it influences the UV-radiation reaching the ground. We live .. relationship between ozone and the greenhouse effect will not be discussed in this .. trust data from the Dobson instruments. .. related to the decreased release of CFC's and other ozone destructing substances. New Phytologist Trust . Thus, despite the past and recent successes in limiting CFC‐driven stratospheric ozone loss, there is still factors as topography and solar aspect in relation to adequate photosynthetic radiation. This may be nothing more than coincidental correlation. By proving the link between CFCs, ozone depletion and temperature .. The only surface temperature data that I trust is CET and it shows a % flat line since
Finally, in the early 's, although the we cannot yet say that stratospheric ozone depletion has reached its maximum, atmospheric levels of ozone-destroying substances in the atmosphere are now declining, and a disappearance of the Antarctic ozone hole is expected by about WMO, Molina and Rowland were awarded the Nobel Prize in The citation from the Nobel committee credited them with helping to deliver the Earth from a potential environmental disaster.
On this 30th anniversary of the beginning of the ozone depletion debate, it is revealing to review the techniques the skeptics used in the CFC-ozone depletion issue over the past 30 years. All of them have parallels in the current global warming debate. Techniques of the Skeptics Launch a public relations campaign disputing the evidence.
Chairman Scorer of DuPont commented that the ozone depletion theory was "a science fiction tale The aerosol industry also launched a PR blitz, issuing a press release stating that the ozone destruction by CFCs was a theory, and not fact.
This press release, and many other 'news stories' favorable to industry, were generated by the aerosol industry and printed by the New York Times, Wall Street Journal, Fortune magazine, Business Week, and the London Observer Blysky and Blysky, The symbol of Chicken Little claiming that "The sky is falling! The material appears to be written by the paper's own journalists, but is hardly changed from the press release.
Predict dire economic consequences, and ignore the cost benefits.
The Association of European Chemical Companies warned that CFC regulation might lead to "redesign and re-equipping of large sectors of vital industry However, the economic reality has been less dire. The alternative technologies already adopted have been effective and inexpensive enough that consumers have not yet felt any noticeable impacts except for an increase in automobile air conditioning service costs " UNEP, These savings came from decreased UV light exposure to aquatic ecosystems, plants, forests, crops, plastics, paints and other outdoor building materials, and did not include the savings due to decreased health care costs.
The report concluded that because of the Montreal Protocol, there would be Find and pay a respected scientist to argue persuasively against the threat.
Scorer blasted Molina and Rowland, calling them "doomsayers", and remarking, "The only thing that has been accumulated so far is a number of theories.
But he has never published any scientific papers on the subject. Use non-peer reviewed scientific publications or industry-funded scientists who don't publish original peer-reviewed scientific work to support your point of view.
Articles published in traditional scientific journals undergo a process essential to good science--peer-review. The peer-review process starts when a prospective author submits their work to a journal. The editor of the journal reviews the article, and sends copies to three scientists who are experts in the field. These anonymous reviewers send their comments on errors that need correcting, omissions that need addressing, etc, back to the journal editor, who then asks the author to submit a revised article addressing the concerns of the reviewers.
After making revisions, the author submits the article back to the journal editor, who can then accept the article, reject it, or send it back for another round of review. The rigors of peer-review are such that a large percentage of submitted articles never get published in the scientific literature.
Inthe year Molina and Rowland were awarded the Nobel Prize in Chemistry for their discovery of the CFC-ozone depletion link, the House Science Subcommittee on Energy and the Environment began a series of hearings to revisit the issue of ozone depletion, where the issue of peer-review was brought up.
During the hearings, Representative John Doolittle, a California Republican, stated, "My own belief, is that the question is still very much open to debate Theories or speculation about this are not sufficient. We need science, not pseudo-science.
Case Study 1 -- Stratospheric Ozone: Myth and Realities", th Congress, 1st session, September 20,Report no. I found extremely misleading representations by the government and government officials that are not founded on sound science. Can you give me an example of some peer-reviewed publications that you consulted in formulating your opinion that there's no [sound] science? Singer doesn't publish in peer-reviewed documents.
The Skeptics vs. the Ozone Hole | Weather Underground
There's a politics within the scientific community, where they're all too intimidated to speak out once someone has staked out a position And under this Congress, we're going to get to the truth and not just the academic politics.
And what I'm asking you, in your search for good science, is what peer-reviewed documentation did you use to come up with your decision?
What good science did you rely on? I do not have that burden. He replied that he had not, because "Well, I just haven't been presented with the study of late.
Going the other way, ozone depletion is a chemical process and is affected by temperatures and water vapour in the stratosphere. Ozone recovery in the tropical stratosphere is expected to be faster and the recovery of the polar ozone hole is expected to be slower because of the CO2-induced cooling of the stratosphere and increase the number of polar stratospheric clouds. Another link is associated with the dynamical impact of the ozone hole around Antarctica increasing the westerly winds dramatically.
There are also links that are perceived in the broader public that are not actually true: CFCs are not aerosols despite what the New York Times claimsglobal warming does not exist because of extra heat coming in through the ozone hole, and aerosol sprays do not cause global warming.
In the public debate, many of the climate contrarians such as Fred Singer got their start denying that CFCs were affecting ozone, using many of the same arguments they now use about climate change CFCs are heavier than air! But through this all, Sherry Rowland strode tall literally — he was 6 ft 5 inand played a large role in debunking some of the wild claims such as the idea that it was all volcanoes.
The Skeptics vs. the Ozone Hole
Several of us at RealClimate had the honor of getting to know Sherry during the latter years of his career. And those of us who did know him can attest to the fact that he was not only a great scientist, but a great person, who displayed remarkable kindness and generosity. This is perhaps best demonstrated by a personal anecdote. One of us Mike got to spend some time with Sherry during a visit to the University of California-Irvine a few years back.
Mike pointed out to the questioner the obvious things—that the atmosphere is well-mixed, etc.Climate 101: Ozone Depletion - National Geographic